The only visible trails are two elliptic grey filaments which could be the tell tails of two medium sized black holes, just as is suggested to be the origin of the other elliptic filaments visible around the two other open star clusters. (called Quintuplet and Arches cluster)

However according to new combined Hubble images of the Sgt..A area there is no sign of any gaseous filamentary Vortex or elliptic structure.Instead we see more than one clear elliptic filaments around the three stellar clusters called: Sagittarius A, Quintuplet and Arches cluster.This seems to be a tell tale for more than one (at least three) barycentres as the origin of these open star clusters.My conclusion based on a new interpretation of black hole splitting and paringThe center of the Milky way is supposed to be equipped with several medium sized DUAL black holes (BHs) forming circular visible gas filaments (elliptic trails) and in the barycenter in the middle between dual black holes: open star clusters like Sgt A, the Quintuplet and Arches cluster. Conclusion: there is NO Giant Black hole in the center of our galaxy.http://migratingblackholes.blogspot.com/2009/01/milky-way-centre-no-giant-black-hole.html